These are only graphs depicting what happens in a conventional ignition and are only displaying voltage. How does CDI differ?
First, from a pure electrical understanding, the coil is the limiting factor in both systems. Although the battery provides the voltage, the coil is the energy storage so it’s very important that you have the correct coil for the job. If you had the specs you could compute the total energy by formula: coil output in mJ = I^2L/2. Manufacturers vary inductance by varying the number of windings and vary the current that flows through the circuit by removing resistance (aka ballast resistor). You want to have as low a resistance as your system can tolerate because you can see that current increases the coil energy by square rather than by inductance alone which is linear. CDI systems operate at much higher voltage levels than a conventional ignition. Because the total energy depends on the coil (and it’s level of efficiency, always Now understanding how the ignition system works (leaving aside what going on within the combuston chamber than affects the peak voltage requirements), the probl
